Carbureter.



- PATENTE UNB 16;-1908. A. W. MENNS. GARBURBTBR.

APPLICATION FILED MAB.. 6, 1907.

s SHEETS-SHEET 1:

T ATBNTEB JUNE 15,1903. A. mms. .y

GRBURETBR;

APfLmATIoN HLBD MAR. e, 1907,

ma C MM 3 SHEETS-SHEET 2.

No. 891,219'. PATBN'TED JUNElG, 190s.

A. W. MENNS. CARBURETBR.

APPLICATION HLET'J MAR. 6, 1907.

a mms-SHEET s.

- .UNTTED STATES PATENT cerros.

ALBERT wnnNNs, or MALDEN, MASSACHUSETTS.

CARBURETER.

.Patentedune 16, 1908.

.Appiimion med march 6,190.7. sriai No. 360,847.

is a specification.

This invention relates to carbureters and has for its object the production of a device of this class for use in connection with hydro'- caibon motors which is adapted to throttle the explosive mixture to a greater or less eX- tent while at the same timethe proper proportion of air and gas is maintained so that an engine may be run atany desired speed.

The invention consists in certain novel features of construction and arrangement of parts .which will be readilyunderstood by' reference to the description of the drawings.

and to the claims to be hereinafter given.

Ol the drawings: Figure 1 represents a horizontal section of a carbureter embodying .the features of this invention, the cutting plane being on line 1-1 onFig. 2. Fig.` 2 represents a vertical section of the same, the cutting plane being on line 2-2 on Fig. 1. Fig. 25 represents a-horizontal section ol" the same., the'cutting plane being on line 3-3 on Fig. 2. Fig. 4 represents a vertical section oi the same, the cutting plane being on line LLM-4 on Figs. fi and 5. Fig. 5 represents a. vi-.i'tical section of the same, the cutting plane heilig on line 5-5 on Figs. 1 and 2. Fig. 6 represents a vertical section of the same, the cutting plane being on line 6 6 on Figsl and 2. Fig. 7 represents a plan of one 0 the removable 'float chambers. Fig. 8' re reseuls a horizontal section through the hy( ioearbon inlet valve, the cutting plane being. on line S-S on Fig. 6, and Fig. 9 represents a vertical section ol" .the hydrocarbon inletl Valve supporting plug.

Similar,characters designate like parts througliout the several ligu-resof thedrawings.

ln the. drawings, 1() represents a suitable easing or frame, ,provided with a cylindrical valve chamber 11. The casing 1() has t'Wo openings therethrough communicating with said valve chamber 11, one of` which 12 is through the top of said easing While the other, 13, passes througha side wall ol" Said easing.

- ommunicatingwith tliechainbcrl 1 are apllul rality ol' passagesoreonipartinents 14, 15,16, and 17, any number ol which may be closed by ineai'is ol' thel cylindrical throttle valve 18 mounted in said chamber 11 and operated b vmeans of the handle 19 secured to the shan .2() of said valve. `The handle 19 is secured to said shank 20 by means'vof a set screw l2 1 bearing against a flattened face 22 on said shank 20, two at faces substantially at right an les to each other so that the handle 19 may e adjustedso that the set screw 21 may bear on either 'of said fla't faces 22 to permit said handle to operate the throttle valve by a movement in either'direction.

The hub of the handle 19 is provided with two arms 23 in each of which is mounted a threaded adjusting pin 24 held-in adjusted position by a set screw 25'.A The urpose of 'these adjusting ins 24 is to provide an adjustable device the handle may be limited to regulate toa nicety the limit of movement of said throttle the end of said pins contacting with ajix'ed part of the carbureter valve in either direction,

at the end of the movement. Adjacent to the o enings 12 and 13 the casing is provided wit ears 26 to' which may be Secured by screws 27`either the threaded couplingvmember 28 or a valve-supporting plate 29 that is, the member 28 and plate 29 maybe positioned as shown in the drawings or their elocation may be reversed. This plate 29 is provided with 'a plurality of perorations 30 which areY ada ted to 4be closed by a valve 31 normall against the inner face-o' the plate 29 by .a spring 32 inter osed between said valve and t ie head of a s ank 38 extending through a boss 34 on said plate 29, said shank being adjustable therein to vary the tension of sa'id spring and is held in adjusted positionby the nut 35 vand lock nut 36. The tension of the Spring 32 is such that normally the valve will be held in closed position'but under abnormal conditionsa current of air will open the valve against the tension of said spring to permit the re( uired amount of air to'enter the valve chamber to mix with the gas passing therethrough. The member 28 is provided with suitable threads for attachment to a line of piping, through which the mixture from When4 the carbureterpasses t0 the engine; the carbureter is attached to this piping it is obviouathat the carbureter may be readily removed therefromv without disturbing the )iping by unfastening the screws 27 and therey permitting the casing IO-to'be separated Said shank'20 is provided with y which the movement of eld. inY position i from lthe coupling member 28. The lower.4

end ol the easing 1t) terminates in a llanged plate 5;? to the under laee ol which may be seeured by means of the screws 3S a plurality ol' llo-atchamberslt)eaohof which isprovided with an air inlet passage 40 extending therethrough and each communicating with one ol' said passages 14, l5, ltj, and 17. Airis admitted to the passage al() through the openings -ll in the extension 42. rlhis extension Al2 is provided with a cap I which has a eentral boss H integraltherewith through which passes a shank having a head stisecured to its outer end between which and the cap 42)' is interposed a spring 47- which normally retains in closed position a valve 48 secured to the opposite end of said shank 45. This valve t8 substantially closes the inlet opening to said extension 42 but under abnormal comlitionsthe valve is permitted to nieve inwardly in said extension against the tension ol' the. spring t7 to permit a greater amount ol air to enter the chamber in said extension 42 and the passage l-ltl in axial line with said inlet opening. The chan'iber in said extension l2 has ini-,lined inner walls sothat as the `valve. moves inwardly the annular space around said valveI is increased to permit the passage ol a greater quantity ol air. 'lhe easing in each ol the lloat chambers t) is provided with a nozzle 49 threaded to said casing with its discharge end extending into the center olf the passage lt). The nozzle ttl is provided with the usual needle valve 5t) threaded thereto and operated by means of the handle 5l to regulate the llow of hydrocarbon lrom said nozzle, rl`he exterior ol the threaded portion olt said nozzle is provided with an annular groove 52 communicating with the interior ot' said nozzle by a plurality olt perlorations as shown in Fig. 6 and a passage 57s extends l'rom said annular groove through the wall ol thc casing ofthe lloat chamber Jt into the interior.compartment ol'v said casing thereby permitting the hydrocarlmn liquid therein to llow into the discharge nozzle and be discharged from the outlet end thereol when the needle valve is operated to permit its passage.

l/l'ithin eaeh oll thc lloat chambers Pt) is pivoted at 54 the bil'urcatcd member 55 having secfnred to its l'rec end a suitable lloat 56 of eork or any other similar material. 'lhe bil'urcated member is connected above said loat by a piate 5T with which co-aets a sprir-ig-pressed pin 5h by which said bifurc-ated member may be'moved about its pivot whenever it may become clogged and moperative. This operating pin :3S is mounted in a threaded member 5.) provided with a relicl passage 6() to prevent the air l'rom being poelieted therein and interfering with the operation ol' the lloat. 'l`he rear end of the bilureated member f'it hns secured tlwreto a plate 'til providingI a suitable shoulder on whieh rests an extension :'32 ot a vaivo (53, the

upper end ot which is provided 'with an enlarged weighted portion 64 which normally retains the valve 63 on its seat in the member threaded to the flange 37 ot the casing 1t).

The member 65 is provided with an annular groove 68 in its peri hery :Hove the,

'68 through the radial openings into the internal annular gro ove 69 to kass freely lengthwise ot said valve and t trough the opening around the extension 62 when the. f y

valve 62% is lifted from its seat.

'l`he annulargrooves 68m the exteriorol the valve-supporting member 65 communicate with the passage Tt) extending from end to end ot' the casing 1t), each end of said passage 7() terminating in an enlarged threaded portion 71 which may be connected to any suitable hydrocarbon supply pipe. 7; is provided to close the end 7l not in use. lt is obvious from an inspection of ltig. 2 that the su )ply pipe may be coil )led to either threaded end 7l to permit ol' t te inlet 'ol hydrocarbon from either direction without interfering with the operation el the. carbureter. The upper end olt the valve-sup-- porting member 65 is provided with a. threaded cap 73 which limits the u )ward movement of the valve member 64 and whieh'is adjustable on said member 65` to vary the movement of said valve.

Sln nhl one of the lloat chambers 3S) be uit out ol' commission it maybe removed trom the casing 1t) without interfering with the pipe connections to the earbureter and the va. ve member 64 by its weight will keep' the valve closed so that no leakage will oc- Should the weight be insullicient to insure the closing of the valve it is obvious that the cap 73 may be lremoved and a plug inserted within the ehamber 74 so that when the cap 73 is returned to its osition the valve 6.5 will be positively retained against its seat.

ln the operation of the invention hydrocarbon liquid is admitted through the passage and passes around the'valve-supporting members 65 in the annular grooves 68, a portion of the liquid passing through the radial openings into the internal groove 69 and as soon as thelevel of the h droear- `bon liquid in either of the tloat e embers reaches a certain point the tloat therein will cause the valve 63 to be lifted from its seat thereby permitting therv hydrocarbon to pass into the float chamber. From the chamber 39 the hydrocarbon will pass through the passage 53 into the annular groove 52 and A threaded plug V through the discharge outlet 'thereof when. the needle valve 51 has been properly adjusted: The hydrocarbon inpassing from this discharge outlet mixes thoroughly with the air passing through .the passage 40, the amount of air being regulated automatically by the spring-pressed valve 48. 'This valve 48 in returning to its normal position con-` tacts with the yielding spring 75 thereby preventing any unnecessary shock and jar. The mixture of air and hydrocarbon enteringr the passages 14, 15,'16, and 17 may be admitted to the valve chamber 11. as desired by the operation of the handle 19, any amount of the mixture being thus admitted either A from a single passage or all of the passages.

If any more Aair is desired to be admitted to produce a suitable mixture at this point it may be provided through the openings 30 the amount of air admitted at this point being regulated by means of the'spring 32.

t is obvious from, airinspeetion ot the drawings that the casing 10 may be connected with any suitable hydrocarbon inlet ipe at either en d of the passage 70 and that in like manner the discharge end may be 'coupled to any suitable pipe yleading lto the engine andi that when the casing has once been thus connected any oli the parts of the carbureter mayl be removed for repair or adjustment vcomplished without interfering without interfering with the piping, which it is obvious is a great advantage.

lAnother advantage of thi.` present invention is that should one or more of the lloat ',lianibers be put out of commission by accident or otherwise these [loat chambers may be removed from the casing and the engine o erated by means of those remaining. In lille manner, by the removal of either of the caps 73 any one of the hydrocarbon inlet valves (,'i may be readily removed without interfering with the pipe connections.

Another advantage of' this device is .that when the carbureter is so positioned that it is necessary that the handle ltlshould be op' erated from the opposite direction this may be readily acconip islied'by loosening theset screw 21 and changing the angle oii'tlie handle to its shank U so that the set screw 21 may co ierateI withthe other llattcned portion of sai( shank, this adjustment being readily' acwith any 'lhe throttle other parts of the mechanism.

'- valve operated by said handle may be moved so as toadniit the hydrocarbon through one or more of thel passages 14,15, .16, and 17, as desired, thereby securing the required amount of mixture to run the engine at low speed or high speed or any intermediate speed. Again, the provision whereby the control of 4aiizto the air inlet passage is automatically.

regulated is another advantage.

l contain liquid hydrocarbon;

It is believed from the foregoing descrip tion that the operation and man advan tages of this invention will be fully understood. Having claim:

lthus described my invention, I.

ber, an air inlet to each of said mixing comture from each of said mixing compartments, and a valve interposed between the said main outlet and the individual outlets or passages from `the said mixing com artments, said valve being adapted to cut oil one or more o paid compartments from the said main' outet. l

2. In a carbureter, the combination of a main outlet for the vaporized mixture, a

valve for controlling vthe output, a plurality of mixing compartments communicating with saidI outlet, an air inlet to each of said compartments, a hydrocarbon inlet to each of said compartments, a plurality of 'tl'oat chambers each of which .one of said compartments and is adapted to each of said chambers to regulate'the admission of hydrocarbon liquid thereto.v

3. In a carbureter, the combination of an outlet Jfor thevaporized mixture; a valve for controlling the output; a'plurality of removable compartments communicating with said outlet; an air inlet to each compartment a hydrocarbon inlet to each compartment; a float chamber for each compartment adapted to contain liquid hydrocarbon and a iioat therein to regulate the admission of hydrocarbon to said chamber;

4. In a carbureter, the combination of a main outlet for the vaporized mixture, a valve for ycontrolling the output, a pluralit of mixingcompartments communicting wit saidfoutlet, an air inlet to each of said compartments, a valve controlling the admission of air to each ofsaid air inlets, a separate to cont/ainliquid hydrocarbon, of said float chambers .to hydrocarbon liquid and adapted and a float in each regulate the admission of thereto.

an air inlet to each'com'partment; a hydrocarboninlet-ft each compartment; a iioat chamber for each compartment adapted to a float therein;

1. In a carbureter, the combination of av said hydrocarbon passages with a float cham-4 partnients, an outlet for the vaporized mirr-y 5. In a carbureter, the combination of arirv sol communicates withV contain a` liquid hydrocarbon, and a loat in float chamber foreach of said compartments,

`partn'ients communicating with said outlet;

a hydrocarbon inlet passage; and a Valve Operated by said lloat between each float chamberand Said passage.

6. ln a varhuroti-i, tho combinatinn of an outlat for the Vapor'ized nuxture.; a valve lor rntrollnrgr the output; a plurality. of

t compartments ioinniunicating with said outlot: an aii` inlet to each. compartannt.; a hydrocarbon inlet to each conlpartinfxnt: a' lloat chamber for vat-,h i-ompartmint adapted to contain liquid hydrocarbon; a, lloat therein to rigulatc the passati@ ot' h vilrocar'hini to munivating with all ol said lloat uhamlwrs; and a valvey interposed lvtwtcn said, passau@ and cach i'hamlwr.

T. ln a rarburetory the combination ol' au outht for thix vaporizid mixture; a Valve l'or i-ontrollingl thc output;- a pluralitxY olI ompartmints (-omnnuncating with said outltt; f anair lnlot to nach compartnuait: a h vdroi f rarbon inlvt to nach rompartmont: a lloat" rhambir for cach (fom'partnunt adapted to rontain liquid lrvdroi'arbon; a float` thi-rain to riiii'ulato. tho pasaagv or h \'dro(arbon to said rhambrr; a furl admissipn passag'il rommunirating with allotI said float i'hamhirs: and a rilmovahlir valvi intvrposi-d birt said passaggi and nach chamber.

Si ln a czarburvtia'7- thv r-omhinat ion ol' an outli-t l'or the Vaporizid mixturt: a valvi l'or controlling the output; a. pluralit)Y olI rompartinvnts communicating with said ontlit; an airinlet to each compartmiait; a hydrorarhon inlet` to nach (-ompartnnnt: a lloat;`

chamber lor each 'compartment adaptial to containliquid hwlrocarhon: a float thm-vin to ruirulatu the passage ol' hydrocarbon to said Chamber; al'ucladn'iission passagi: a tubular plut interposedv l/ctwian said passagv and nach lloatI chambir and providial with pra'- forations.therethrough vommuniifatiny; with said passage; a valve in vrai-h tubular plug: and moans lor limiting thvI mo\f'ignint of said valve.

t)4 [n afcarburutor, tlmcombination ol" an outlot for the vaporizvd mixture; a valve for rontrollintr thil output; a plurality ol' con1- au air inlet to nach compartinont; a hydrofarbiminlct -t-o cach compartinimt.; a lloat claimbor loi: each cumpartmint adapted to contain liquid hydrimarhon; a lloat thcriin to rcgulati thi passage of hffdroi-arbon to said chamber; a funi admission passagri: a. tubular plug.: iii'tcrposcd hctwcvn said pats- -sage and lloat chamber. and providiirl with poijloratzions tlicrithroughA communix-ating` with said passage; a Valvv Iin nach tubular pluo; and -a rinnovaplo cap forV said plug'.

wiin

' f and tht` individual outlitts or paasaifis lrom 10. in a carbureter, they combination ol' an 'outletl for the Vapor-ized mixture; a valve l'or Controlling` the output; a. pluralityr ot rompartmfnts communiiating with said outlit; an air inlet to cach rompart'miait: a hydrocarbon inlet to cach rompartmvnt: a lloaty chainbia' for nach compartment adaptcd to contain liquid li \'ilroi-arl on; a lloat thcri-in to rcgulati thv passau@ ol" h vdroi'zu'bon to said chamber: a luil admission passagi: a tubular pluii` intirposid bitwifin said passau@ and vai'h lloatrv rharnhir and providt-d with an annular ixtirnal lroow and pii'l'o rations tlnrothrougli' commumratmg with plug:

thi said mixing; coinparlinints, said Yalw lining adaptid to rut olil ont` or mori'. ol' said vompartmnnts l'rom th(l main outlrt: and an automatira'll \-opi\ratial valve. in lsaid air passag't to regalati` tht admission of air.

l2. main outlit tlua'e't'rum for tho'vaporixid mixturn; a plurality of llnat vhanibcr's adapted to Contain a hydroi-arlmn liquid and oarh provided with an air y'iassagc ilxtindint' tlwrithrough: a. hydrorarh in'passag( from nach oll said lloat chambvrs ixtvndingintoonc of ,said air passagis; a. mixingl conmartmunt with whii'h naih o`l` said air passages (sonnnuniiaitis'; an outlit l'ortlw vapori/lud'mixture l'rom ian-h ol5 said mixingrompartmmds; a'

valwr intirposid hitwiiin thi main outlt and tlw individualoutlets or passages from thil said mixing fompartnmints, said valve ltr-ingr adaptml to i'ut oll' ont*l or morn of said comparimvnts from tlmy main outlut.; an 0xtcni-ion 'to thvl rasingl olI nach lloat i'hambcr providid with a ronival uhainlwr; and an automatiwall \'-op \ratnd valvo in said chambnr ailaptid to i-o'ntrol tluadmission ol' air.'

Signid bi' nu al. Boston, Mass., this lst day ol .\lari^h. ltltl.

' Alillll'l lV. MlltlNS Wit nissis :A

Willmann lt). lloran/inn, lnxx (l. @Invia/mn.

ln a carhuriitim, thv, combination ol a f) tl 

